security (Noun) — The state of being free from danger or injury. ex. "we support the armed services in the name of national security"
security (Noun) — Defence against financial failure; financial independence. ex. "his pension gave him security in his old age"
security (Noun) — Freedom from anxiety or fear. ex. "the watch dog gave her a feeling of security"
security (Noun) — A formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends. ex. "he held several valuable securities"
security (Noun) — Property that your creditor can claim in case you default on your obligation. ex. "bankers are reluctant to lend without good security"
security (Noun) — A department responsible for the security of the institution's property and workers. ex. "the head of security was a former policeman"
security (Noun) — A guarantee that an obligation will be met.
security (Noun) — An electrical device that sets off an alarm when someone tries to break in.
security (Noun) — Measures taken as a precaution against theft, espionage or sabotage etc.. ex. "military security has been stepped up since the recent uprising"